Doing anything while connected to open Wi-Fi networks. All it takes to eavesdrop on an open Wi-Fi network is a laptop and proximity. Although they can’t eavesdrop on your SSL/TLS traffic, they can (and will) pick up on (insecure) DNS requests, which gives them at least the domains of any websites and services that you use (if not the specific pages).
Doing anything while connected to open Wi-Fi networks. All it takes to eavesdrop on an open Wi-Fi network is a laptop and proximity. Although they can’t eavesdrop on your SSL/TLS traffic, they can (and will) pick up on (insecure) DNS requests, which gives them at least the domains of any websites and services that you use (if not the specific pages).